Home / 38,092.80-57,143.04-13,129.56

Finding the Fourth Proportional to 38,092.80, 57,143.04 and 13,129.56

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Solution

The fourth proportional to 38,092.80, 57,143.04 and 13,129.56 is: 19,695.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,092.80 : 57,143.04 = 13,129.56 : x
  2. Step 2: Convert to fraction form
    38,092.80/57,143.04 = 13,129.56/x
  3. Step 3: Cross multiply
    38,092.80x = 57,143.04 × 13,129.56
  4. Step 4: Simplify right side
    38,092.80x = 750,262,972.26
  5. Step 5: Solve for x
    x = 750,262,972.26/38,092.80
  6. Step 6: Final answer
    x = 19,695.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.